Encourage login on zero matches (fixes #67)

Change-Id: Ic7805d2286de9fc24d06ca94c71b7ab4890f7973
diff --git a/t/fixtures/response_query_paum_o0_c25.json b/t/fixtures/response_query_paum_o0_c25.json
new file mode 100644
index 0000000..ca9ebba
--- /dev/null
+++ b/t/fixtures/response_query_paum_o0_c25.json
@@ -0,0 +1,41 @@
+{
+  "status" : 200,
+  "json" : {
+    "@context" : "http://korap.ids-mannheim.de/ns/KoralQuery/v0.3/context.jsonld",
+    "meta" :  {
+      "count" : 25,
+      "startIndex" : 0,
+      "authorized" : null,
+      "timeout" : 120000,
+      "context" : {
+        "left" : ["token",40],
+        "right" : ["token",40]
+      },
+      "fields" : ["pubDate","subTitle","author","pubPlace","title","textSigle","UID","ID","layerInfos","corpusSigle","docSigle","corpusID","textClass"],
+      "version" : "0.55.7",
+      "benchmark" : "0.120577834 s",
+      "totalResults" : 0,
+      "serialQuery" : "tokens:s:Paum",
+      "itemsPerPage" : 25
+    },
+    "query" : {
+      "@type" : "koral:token",
+      "wrap" : {
+        "@type" : "koral:term",
+        "layer" : "orth",
+        "key" : "Baum",
+        "match" : "match:eq",
+        "foundry" : "opennlp",
+        "rewrites" : [
+          {
+            "@type" : "koral:rewrite",
+            "src" : "Kustvakt",
+            "operation" : "operation:injection",
+            "scope" : "foundry"
+          }
+        ]
+      }
+    },
+    "matches" : []
+  }
+}
diff --git a/t/plugin/auth-oauth.t b/t/plugin/auth-oauth.t
index b211eab..802f9d2 100644
--- a/t/plugin/auth-oauth.t
+++ b/t/plugin/auth-oauth.t
@@ -213,6 +213,15 @@
   ->element_exists('div.button.top a.logout[title~="test"]')
   ;
 
+$t->get_ok('/?q=Paum')
+  ->status_is(200)
+  ->text_like('h1 span', qr/KorAP: Find .Paum./i)
+  ->text_is('#total-results', '')
+  ->content_like(qr/\"authorized\"\:\"yes\"/)
+  ->element_exists_not('p.hint')
+  ;
+
+
 # Logout
 $t->get_ok('/user/logout')
   ->status_is(302)
@@ -237,6 +246,15 @@
   ->content_like(qr/\"authorized\"\:null/)
   ;
 
+$t->get_ok('/?q=Paum')
+  ->status_is(200)
+  ->text_like('h1 span', qr/KorAP: Find .Paum./i)
+  ->text_is('#total-results', '')
+  ->content_like(qr/\"authorized\"\:null/)
+  ->text_is('p.hint', 'Maybe you need to log in first?')
+  ;
+
+
 # Get redirect
 my $fwd = $t->get_ok('/?q=Baum&ql=poliqarp')
   ->status_is(200)